Need 900 accounts on a server. What hardware do I need?

[toygeek]

To make a long story short, I need to build 3 Plesk servers that can handle almost 1000 accounts each. Its going to be 750-900 accounts per server. What kind of hardware will I need in order to run this? I'll be running CentOS 4.6, PSA 8.2 or 8.3.

I am considering 3 boxes configured as such:

Intel Quad Core 2.4ghz
4GB RAM
2x750GB disks in RAID1 Mirror
750GB Backup disk

I am on a bit of a budget so I'm willing to get a little creative and make the servers with different parts. I just need RAID1 on the primaries (we picked 750GB's for the high speed of the disks on read) and at least one backup disk. I am considering doing two backup disks so that I can create a 20-40GB RAID1 partition to mount /var/ to.

Thanks for any suggestions.

FWIW I have a few machines running 500-600 domains and they are plenty stable, although not as fast as I'd like. I'm not moving new customers into these boxes, I'm migrating old RH9 and FC2 PSA 7/7.5 boxes into these. Don't even get me started on the migration tools.....

 

[pdws]

Parallels offfer to contact their Sales for the hw conf info:

NOTE: For questions regarding hardware configurations, please contact your sales representative at [email protected]

Just a tip...

 

[Amin Taheri]

I have seen dual dual core xeon processors with 3GB of memory be enough for only three to four hundred accounts, and sometimes seen single processor machines enough for 600 accounts.

its really all about how active your accounts are and traffic, cpu requirements for each. I would say the more money you can spend the better, and the fewer accounts on each machine the better.